A nurse is planning a staff education session regarding biological weapons of mass destruction. Which of the following should he plan to include in the session? (Select all that apply.)

The correct answer is: a. Place a black tag on the client’s upper body and attempt to help the next client in need.

Choice A: Place a black tag on the client’s upper body and attempt to help the next client in need.

In mass casualty incidents, the START (Simple Triage and Rapid Treatment) triage system is often used. According to this system, if a patient is apneic (not breathing) and does not resume breathing after repositioning the airway, they are considered deceased or non-salvageable and should be tagged with a black tag. This allows the nurse to focus on other victims who have a higher chance of survival.

Choice B: Start CPR

While starting CPR might seem appropriate in a normal setting, during a mass casualty incident, resources and time are limited. The priority is to save as many lives as possible. Performing CPR on an apneic patient with a weak pulse would take significant time and resources that could be used to help other victims with a higher chance of survival.

Choice C: Place a red tag on the client’s upper body and obtain immediate help from other personnel.

A red tag is used for patients who need immediate care and have a high chance of survival if treated promptly. Since the client remains apneic even after repositioning the airway, they do not meet the criteria for a red tag.

Choice D: Reposition the client’s upper airway a second time before assessing his respirations.

Repositioning the airway a second time is not recommended in the START triage system. If the patient does not resume breathing after the initial repositioning, they are considered non-salvageable.

Choice A Reason: This is incorrect because shortening of P-wave duration is not a sign of hyperkalemia or its reversal.

P-wave duration reflects the time it takes for the atria to depolarize and contract.

Choice B Reason: This is incorrect because restoration of QRS complex amplitude is not a sign of hyperkalemia or its reversal. QRS complex amplitude reflects the voltage or strength of the ventricular depolarization and contraction.

Choice C Reason: This is correct because the reduction of T-wave amplitude is a sign of hyperkalemia reversal. T-wave amplitude reflects the repolarization or recovery of the ventricles after contraction. Polystyrene sulfonate is a medication that lowers the serum potassium level by binding to it in the gastrointestinal tract and excreting it in the stool. High serum potassium level, or hyperkalemia, can cause cardiac arrhythmias and ECG changes, such as peaked T waves, prolonged PR interval, flatened P waves, widened QRS complex, and ventricular fibrillation. By lowering the serum potassium level, polystyrene sulfonate can reverse these ECG changes and normalize the cardiac rhythm.

Choice D Reason: This is incorrect because the widening of the QRS complex is a sign of hyperkalemia, not its reversal. Widening of the QRS complex reflects the delay or impairment of ventricular depolarization and contraction.